Hi Yang, Thank you for the patch! Yet something to improve: [auto build test ERROR on linus/master] [also build test ERROR on v5.1-rc2 next-20190328] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Yang-Shi/Another-Approach-to-Use-PMEM-as-NUMA-Node/20190326-034920 config: i386-randconfig-x076-201912 (attached as .config) compiler: gcc-7 (Debian 7.3.0-1) 7.3.0 reproduce: # save the attached .config to linux build tree make ARCH=i386 All errors (new ones prefixed by >>): In file included from include/linux/memcontrol.h:29:0, from include/linux/swap.h:9, from include/linux/suspend.h:5, from arch/x86/kernel/asm-offsets.c:13: >> include/linux/mm.h:862:2: error: #error SECTIONS_WIDTH+NODES_WIDTH+ZONES_WIDTH > BITS_PER_LONG - NR_PAGEFLAGS #error SECTIONS_WIDTH+NODES_WIDTH+ZONES_WIDTH > BITS_PER_LONG - NR_PAGEFLAGS ^~~~~ make[2]: *** [arch/x86/kernel/asm-offsets.s] Error 1 make[2]: Target '__build' not remade because of errors. make[1]: *** [prepare0] Error 2 make[1]: Target 'prepare' not remade because of errors. make: *** [sub-make] Error 2 vim +862 include/linux/mm.h 348f8b6c4 Dave Hansen 2005-06-23 860 9223b4190 Christoph Lameter 2008-04-28 861 #if SECTIONS_WIDTH+NODES_WIDTH+ZONES_WIDTH > BITS_PER_LONG - NR_PAGEFLAGS 9223b4190 Christoph Lameter 2008-04-28 @862 #error SECTIONS_WIDTH+NODES_WIDTH+ZONES_WIDTH > BITS_PER_LONG - NR_PAGEFLAGS 348f8b6c4 Dave Hansen 2005-06-23 863 #endif 348f8b6c4 Dave Hansen 2005-06-23 864 :::::: The code at line 862 was first introduced by commit :::::: 9223b4190fa1297a59f292f3419fc0285321d0ea pageflags: get rid of FLAGS_RESERVED :::::: TO: Christoph Lameter :::::: CC: Linus Torvalds --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation